Ventilating door



Nov. 2o, 1928.

L. S. BARR VENTILATING DOOR' Filed May 5. 1928 Patented Nov. 20, 1928.V

PATENT OFFICE.

LEWIS S. BARR,OF CHICAGO, ILLINOIS.

VENTILATING DOOR.

Application led May 5,

rlChis invention relates to improvements in ventilating doors, and more especially a venf tilating door adapted for use inl connection with a poultry car. .Such cars are commonly provided with Ventilating shafts or air ducts at the ends adapted to admit fresh air into the car through the coops.

@ne of the features of my invention is the provision of means for readily opening or closing the chiots to regulate the ventilation. In cold weather, for example, it may be desirable to close one or more of the ducts. This can be easily accomplished by the use of my invention.

Other features and advantages of my invention will appear as I proceed with my specification.

In that form of device embodying the features of my invention shown in the accompanying drawings, Figure 1 is a vertical sectional view taken through a ventilating shaft in the end of a poultry car, Fig. 2 is a similar enlarged view of the lower end thereof, and Fig. 3 is a longitudinal sectional view of one end of a poultry car.

As shown in the drawings, 10 indicates the floor of a poultry car of common form, and 11 the roof thereof. As shown in Fig. 3, the car may be provided with the usual central aisle 12 with tiers of coops 13 on each side. The ends of the aisle of the car are closed by the usual sliding doors 111.

At the end of the car, on each side of the aisle, the car has a double wall7 the outer being indicated by 15 and the inner by 1G. The space between these walls, as indicated by 17, closed by the vertical members 18 so that there is formed a vertical Ventilating shaft or air duct 17 provided at its bottom with an opening to the outside, as indicated by 19.

The inner wall 16 is provided with openings 20, 20, through which the fresh air passes from the shaft into the car through the coops 13.

Means are provided for closing the lower end of each shaft to exclude the outside air. Such means include a vane or door 21, preferably made of sheet metal and hinged at one edge so that it can be swung back and. forth from vertical open position to a horizontal position (as shown in Fig. 2), closing the duct. The hinging is accomplished by provding two curved supporting strips 21a ab 1928. serial No. 275,467

tached to the door and extending through holes 15a in the outer wall 15. The ends of the strips 21a are bent outwardly or downwardly, as indicated'by 21b to form stops to prevent such strips from becoming disengaged from the holes 15a when the door is open.

22 indicates a rest or stop fastened on the inner wall 16 for the inner edge of the door 21 to rest on when itis closed. 23 indicates a catch pivotally mounted on the wall 15 to hold the door 21 open. The catch is operated by a hand lever on the outside of the car. The door 21 may be pushed open by reaching in through the opening` 19.

lVhile I have shown and described certain embodiments of my invention, it is to be un-V derstood that it is capable of many modifications. Changes, therefore, in the construction and arrangement may be made without departing from the spirit and scope of the invention as disclosed in the appended claims, in which it is my intention to claim all novelty inherent in my invention as broadly as possible in view of the prior art.

What I claim as new, and desire to secure by Letters Patent, is:

1. In a car of the character described having a vertical ventilating shaft with an opening to the outside at the lower end thereof, means for closing said shaft near the lower end thereof and above said opening, said means including a door hingecly attached to one wall of said shaft by means of curved supporting strips extending through holes in said wall, said door being accessible for manual control through the opening at the lower end of the shaft and adapted to be moved from horizontal position closing the shaft to vertical position opening the same.

2. Mechanism as claimed in claim 1, in which the ends of the curved supporting strips are bent outwardly and downwardly as indicated by 211 to prevent such strips from becoming disengaged from the holes in the wall when the door is in open position.

3. Mechanism as claimed in claim 1, in combination with a catch operable from the outside of the car for holding the door in open position. l

In witness whereof, I have hereunto set my hand this 30th day of April, 1928.

LEWIS S Blllf 

